----- Original Message -----
From: [email protected]
Date: Thursday, February 3, 2005 7:32 am
Subject: st: Simulation question.
> Hi,
>
> I have a simulation problem.
>
> Usually, what I've seen done in simulations is to change
> values in independent variables and see their result on the
> (predicted dependent variable).
>
> Ex:
>
> reg GDP pop invest
> predict gdphat
> su gdphat
> replace pop =pop * 1.03 /* 3%
> growth of
> population*/
> predict gdphat2
> su gdphat2
> g diff = gdphat - gdphat2
> /*Measure of the
> impact of the population growth */
>
> Now, here is my question:
>
> Suppose I want to double my GDP ?
> I am interested in how my independent variables will change (in their
> coeffcients and/or in their observations ???)
> to meet the new values of GDP.
If you change your model to -reg 2*gdp pop invest- the estimated coefficients
and standard errors will be twice as large as before.
Scott
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